Press for making building or paving blocks from plastic materials.



Patented out; 2a, |902.v

.1', AQ JoYcE. PRESS VFl-MKING BUILDING 0R PAVING BLOCKS FRM'PLSTIC'MTERIALS.

(Application mea Nov. 19, i901.)

(No Model.)l

A NORA/EK Yu: Nonms PETERS co.. Nom-umn.. wAsHmcro/L nfc.

UNITED STATES PATENT OFFICE.

JAMES A. JOYCE, OF CLEVELAND, OHIO.

PRESS FOR MAKING BUILDING OR PAVING BLOCKS FROM PLASTIC MATERIALS.

SPECIFICATION forming' part of Letters Patent N o. 712,073, dated October 28, 1902.

. Application filed November 19, 1901l Serial No. 82,848. (No model.)

To @ZL whom it may con/cern:

Be it known that I, JAMES A. JOYCE, a citizenof the United States, residing at Cleveland, Cuyahoga county, State of Ohio, have invented a new and useful Improvement in Presses for Making Building or Paving Blocks from Plastic Materials, of which the following is a specification.

My invention has reference to machines for making paving or building blocks and it consists in certain improvementsin mechanism and apparatus for molding, compressing, cooling, and delivering the blocks in succession, all of which is set forth in the following specication and shownin the accompanying drawings, which form a part thereof.

The object of my invention is to provide suitable apparatus by which the successive operations specified above may be carried on continuously in successive order, producing from the soft plastic material, such las asphaltum combined, solidified, compressed, and hardened into building or paving blocks.

Figure 1 shows a side view. Fig. 2 shows an end view with parts shown in section. Fig. 3 shows a plan or top View of the machine.

Similar letters of reference indicate corresponding parts.

The material from which the blocks are to be made is delivered to the receiving-pot, the lower end of which is shown and marked M2. This pot may be of any form suitable for the machine, and it may have a Spiral or other form of feed to force the material into the molds in the die-disk,as will be necessary with some kinds of material; but for most cases the material will be forced in by its own weight. In cases where asphaltum is used for blocks steam-pipes may be put around the receiving-pot to keep the material soft and plastic, so as to flow into the molds freely and to completely ll the same.

The die-disk D has a plurality of holes D D2, dac., forming the molds for the blocks. These holes may be of any shape or size to suit the block to be made. The die-disk is rotatively fixed on pin E and supported on table E7. E7 is a table-like part which forms a bottom for the molds in thel die-disk, the 5o table E7 being iixed, and the die-disk D re- I volves on the table. The molds D' D2 D2, &c., in the die-disk D are filled from the receiving-pot by the empty molds being revolved around until they come under the opening in the bottom of the receiving-pot. After being filled they are further revolved until they reach the pressing-plunger A. The material is pressed rmly into a block under the pressing-plunger. Y

The blocks are held in the molds andfurther revolved until they come under the pushing-out plunger A'. pushed out on the off-bearing conveyer-belt J2 and conveyed oi through a bath of cold liquid, through which the conveyor-belt travels. After passing through the cold liquid the blocks are picked from the conveyor-belt and piled for use.`

The shaft F2 in bearings F2 and driven by hand or other power applied in any suitable manner is provided with eccentrics F, F', and E5 and .chain-sheave B8, which operates the various-parts of the machine, as hereinafter described.

The mechanism is so arranged that when the shaft F2 is revolved the plungers A and A' are raised out of the die-disk by the eccentrics F and- F', and while they are thus raised the eccentric E5 revolves the die-disk, and in so doing an empty mold is iilled and moved one-eighth of a revolution, and the one that had been previously filled is moved under the pressing-plunger A, and the block that had been previously pressed is moved under the pushing-out plunger A', which forms the completed block.

To make my description more easily understood, I have put eight molds in the die-disk and lettered them D' D2 D3, dac. This machine is arranged to have the die-disk make an eighth of a revolution to one revolution of the shaft F2, thus making a block at each revolution of the shaft F2. I do not wish to Here the blocks arev IOO B and C, which form a toggle for pressing the blocks. M and is pivotally held in position and forms the upper end of the toggle. The bars C and B are pivotally connected to the eccentric-bar F4, which controls the movement of the plunger A. The bars B are pivotally connected to the plunger A, which is held against all movements except the vertical, which is fully under the control of the shaft F2. The plunger A is moved up and down to press the blocks into shape. The eccentric F is connected to the bars B and C', which form a toggle for pushing the blocks out of the molds after they have been pressed. The bar C has a bearing on the shaft M and is pivotally held in position and forms the upper fixed end of the toggle. The bars C and B are pivotally connected to the eccentric-bar F5, Which controls the movements of the pushingout plunger A. The bar B is pivotally connected at the upper end to the bar C. At the lower end the plunger A is connected, which is held against all movements except the ve1tical,which is fully under the control of the shaft F2.

The plunger A is moved up and down to push the block out of the die-disk after it has been pressed by the plunger A.

The eccentric E5 operates the die-disk by revolving it, so as to allow the molds to be filled, pressed into blocks, and pushed out of the molds. The eccentric E5 is connected to the disk E2 by rod B7 through the universal joint E4. These disks have a ratchet between them and a ratchet-wheel E2, the ratchetwheel being fastened to the sleeve E, and E being fastened to the die-disk D, and the disks E2 being free to move on the sleeve E. The ratchet is held in the ratchet-wheel by a spring and so arranged that when the eccentric E5 is revolved a reciprocating motion is given to the rod BT, which causes the sleeve E and the die-disk to revolve about the shaft E.

To follow the complete course of a block from plastic material to the finished block delivered to the oif-bearing conveyer is as follows: The eccentric is connectedto disk E2 by the rod BT. The receiving-pot is kept well filled with the material from Which the blocks are to be made. The die-disk is placed so that the mold-hole D is under the hole in the bottom of the receiving-pot. The mold D in this position will readily iill with the material from which the blocks are to be made. The machine is started and the shaft F2 is revolved and the plungers A and A are lifted out of the disk D. While the plungers are thus raised the die-disk is revolved, so that mold D2 is filled, and mold D' stands ready to be moved under the pressing-toggle at the next move. The die-disk is moved again, and the mold D is moved under the pressingplungerand solidly pressed into a block. This movement is continued on each successive The bar C has a bearing on the shaft' mold until the mold D reaches the pushingout plunger, Where it is pushed out of the diedisk, and the empty mold is again moved around until it is again lled, pressed, and pushed out, and so on with each successive mold being filled, pressed, and pushed out onto the o-bearing conveyer, Where it is carried through a cooling liquid and made ready for handling.

The off-bearing conveyer J2 is an endless traveling belt suitably operated Within a tank I, containing a cooling liquid. The endless traveling belt is driven by a chain and chainsheaves. This is simply to show a means of driving the belt, and it is plainly evident that many other methods may be employed to drive the belt.

The Whole mechanism is shown supported by the side frames G2 and G4 and uprights G". The frames are connected by pieces H, H', and K', all of which are unimportant except as means of supporting the mechanism. i They may be readily changed to suit the purpose for Which the machine is intended.

Having fully described my invention, I claiml. In a block-pressing machine having a revolving disk provided with a plurality of mold-holes, and means of feeding the same, an oscillating eccentric supported upon a shaft, a ratchet and pawl acting in conj unction with said oscillating eccentric to revolve the disk, a shaft supporting pressing togglebars, a pressing-plunger connected to the said pressing toggle-bars, a support under the disk forming a bottom for the said mold-holes, an eccentric supported upon a shaft and acting in conjunction with the pressing-toggle to raise and lower the plunger for pressing the blocks, a shaft supporting ejecting toggle-bars, an ejecting-plunger, and an eccentric supported upon a shaft and acting in conjunction with the ejecting-plunger for ejecting the blocks from the molds, a frame supporting the Various parts and mechanism for operating; substantially as shown and described.

2. In a block-pressing machine having a revolving disk provided with a plurality of mold-holes, and mechanism for feeding the same an oscillating eccentric supported upon a shaft, a ratchet and pawl acting in conjunction with said oscillating eccentric to revolve the disk, a shaft supporting pressing togglebars, a pressing-plunger connected to said pressing toggle-bars, a support under the disk forming a bottom for said mold-holes, an eccentric supported upon a shaft and acting in conjunction with the pressing-toggle to raise and lower the plunger for pressing the blocks, a shaft supporting ejecting togglebars, an ejecting-plunger, and an eccentric supported upon a shaft and acting in conjunction With the ejecting-plunger for ejecting the blocks from the molds, and an end- IOO IIO

less conveyer-belt arranged to pass under the In testimony that I claim the foregoing as ejeeting-plunger and to receive the blocks as my invention I aflix my signature in presencek they are ejectedA from the molds and carry of two witnesses.A

them through a trough of cold liquid to cool JMES A. JOYCE. 5 them, a frame supporting the various parts Witnesses:

and mechanism for operating, substantially C; We STUTE,

as shown and described. J. B. LARNED. 

